1/*
2 * Copyright (C) 2012 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#if ENABLE(JIT)
29
30#include "MacroAssembler.h"
31#include <wtf/Vector.h>
32#include <wtf/text/CString.h>
33
34namespace JSC {
35
36class CodeBlock;
37class LinkBuffer;
38
39namespace Profiler {
40class Compilation;
41}
42
43class JITDisassembler {
44 WTF_MAKE_FAST_ALLOCATED;
45public:
46 JITDisassembler(CodeBlock*);
47 ~JITDisassembler();
48
49 void setStartOfCode(MacroAssembler::Label label) { m_startOfCode = label; }
50 void setForBytecodeMainPath(unsigned bytecodeIndex, MacroAssembler::Label label)
51 {
52 m_labelForBytecodeIndexInMainPath[bytecodeIndex] = label;
53 }
54 void setForBytecodeSlowPath(unsigned bytecodeIndex, MacroAssembler::Label label)
55 {
56 m_labelForBytecodeIndexInSlowPath[bytecodeIndex] = label;
57 }
58 void setEndOfSlowPath(MacroAssembler::Label label) { m_endOfSlowPath = label; }
59 void setEndOfCode(MacroAssembler::Label label) { m_endOfCode = label; }
60
61 void dump(LinkBuffer&);
62 void dump(PrintStream&, LinkBuffer&);
63 void reportToProfiler(Profiler::Compilation*, LinkBuffer&);
64
65private:
66 void dumpHeader(PrintStream&, LinkBuffer&);
67 MacroAssembler::Label firstSlowLabel();
68
69 struct DumpedOp {
70 unsigned index;
71 CString disassembly;
72 };
73 Vector<DumpedOp> dumpVectorForInstructions(LinkBuffer&, const char* prefix, Vector<MacroAssembler::Label>& labels, MacroAssembler::Label endLabel);
74
75 void dumpForInstructions(PrintStream&, LinkBuffer&, const char* prefix, Vector<MacroAssembler::Label>& labels, MacroAssembler::Label endLabel);
76 void reportInstructions(Profiler::Compilation*, LinkBuffer&, const char* prefix, Vector<MacroAssembler::Label>& labels, MacroAssembler::Label endLabel);
77
78 void dumpDisassembly(PrintStream&, LinkBuffer&, MacroAssembler::Label from, MacroAssembler::Label to);
79
80 CodeBlock* m_codeBlock;
81 MacroAssembler::Label m_startOfCode;
82 Vector<MacroAssembler::Label> m_labelForBytecodeIndexInMainPath;
83 Vector<MacroAssembler::Label> m_labelForBytecodeIndexInSlowPath;
84 MacroAssembler::Label m_endOfSlowPath;
85 MacroAssembler::Label m_endOfCode;
86};
87
88} // namespace JSC
89
90#endif // ENABLE(JIT)
91